Question

A Contractor employed 30 men to complete the project in 100 days. But later on he realized that just after 25 days
only 20% of the work had been completed? How many extra days, than the scheduled time are required?

Answer 1

Step-by-step explanation:

there is a SIMPLE FORMULA FOR THIS KIND OF Questions,

m1d1 W1

-------------- = -------

m2d2 W2

In 25 days ,they finished 20% of the work,In 100 days they will finish 80 % of the work, remaining work is 20 %

80 % = 4/5

4 part of the work is completed which is 80%,

remaining 1 part = 20% incomplete work

30 * 100 4

-------------- = --------

30* X 1

apply cross multiplication method,

X = 25 days need more than the scheduled time are required

total time is 125 days